Residents of Pueblo, Colo., not only benefit from a low cost of living, but also from a low state income tax rate of 4.63 percent. The average cost for a can of tuna is 83 cents, a head of lettuce runs $1.01, and a dozen eggs costs $1.62. Heading to the movies will cost you $8.50. The average home price? A modest $196,330. Pueblo ties Conway, Ark., with a cost of living that comes in at 13.8 percent less than national average.